Auxiliary power supply device for a semiconductor switch device

摘要

The invention refers to an auxiliary power supply device (10) for a semiconductor switch device (11), a module comprising an auxiliary power supply device (10) and a semiconductor switch device (11), a semiconductor switch device (11) and a method for supplying auxiliary power to a semiconductor switch device (11). Said auxiliary power supply device (10) comprises at least one thermoelectric generator (2), which supplies an auxiliary voltage (Va).